| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| THERESA CREEK CHAMPAGNE | Mare | BAY | 144020 | 18/08/1999 | Stud Book | Not Eligible |
| THERESA CREEK DOT | Mare | BAY | 156084 | 30/08/2000 | Stud Book | Not Eligible |
| THERESA CREEK KELLIE | Mare | BROWN | 144018 | 12/09/1998 | Stud Book | Not Eligible |
| THERESA CREEK SCHOONER | Gelding | BAY | 117852 | 16/01/1992 | Stud Book | Not Eligible |
| THERESA FOX | Mare | BAY | 2359 | Stud Book | Deceased | |
| THERESA PARK MAJESTICALLY - HSH | Mare | BROWN | 157636 | 03/10/2001 | Stud Book | Not Eligible |
| THERESAPARK MATILDA - HSH | Mare | BROWN | 197731 | 03/10/2003 | Stud Book | Not Eligible |
| THERINA - HSH | Mare | CHESTNUT | 21208 | 12/12/1967 | Stud Book | Deceased |
| THERINGA | Mare | BAY | 39488 | Stud Book | Not Eligible | |
| THERIVERS ABBEAVER DECK | Gelding | BAY | 149785 | 17/10/1998 | Stud Book | Not Eligible |
| THERIVERS CELINE | Mare | GREY | 185507 | 14/10/1999 | Stud Book | Eligible |
| THERIVERS ROBIN HOOD | Gelding | BAY | 163110 | 14/10/1998 | Stud Book | Not Eligible |
| THERIVERS SATIN | Mare | GREY | C2-149787 | 16/12/1997 | Second Cross | Eligible |
| THERIVERS SCARLIGHT | Mare | GREY | SM-153711 | 10/11/2000 | Special Merit - Stud Book | Eligible |
| THERIVERS SUMMER ROY | Gelding | GREY | C2-153712 | 15/12/2000 | Second Cross | Not Eligible |
| THERRIBRI EL DIABLO | Gelding | BAY | 57243 | Stud Book | Not Eligible | |
| THERWOOD GOLDIE | Mare | CHESTNUT | 25528 | Stud Book | Not Eligible | |
| THERWOOD SHILOAH | Mare | GREY | 72409 | 03/09/1980 | Stud Book | Not Eligible |
| THERWOOD TABATHA | Mare | CHESTNUT | 25529 | Stud Book | Not Eligible | |
| THERWOOD TABERNELLA | Mare | CHESTNUT | 30569 | 13/10/1974 | Stud Book | Not Eligible |
| THERWOOD TIFFANY BELLE | Mare | DUN | 19204 | Stud Book | Deceased | |
| THEWATTLES MISS EMMA - HSH | Mare | BAY | 115039 | 29/09/1994 | Stud Book | Not Eligible |
| THING | Gelding | BAY | 19952 | Stud Book | Deceased | |
| THIRD TIME COOL | Gelding | CHESTNUT | C1-166103 | 15/08/2001 | First Cross | Not Eligible |
| THIRLESTONE TIFFANY | Mare | GREY | 5426 | 01/01/1967 | Stud Book | Deceased |
| THIRLMERE BARLOCH | Gelding | CHESTNUT | 49753 | 07/10/1976 | Stud Book | Not Eligible |
| THIRLMERE TAMMY | Mare | CHESTNUT | F18941 | 30/10/1978 | Foal Recorded | Not Eligible |
| THIRLSTONE ALABASTER | Gelding | CHESTNUT | 56672 | 09/11/1977 | Stud Book | Deceased |
| THIRLSTONE ANOTHER DAWN | Mare | BROWN/GREY | 64985 | 02/04/1981 | Stud Book | Not Eligible |
| THIRLSTONE CHANCE SPOT | Mare | BROWN | 59217 | 17/12/1977 | Stud Book | Deceased |
| THIRLSTONE COLLEEN | Mare | BROWN | 21993 | 01/08/1972 | Stud Book | Deceased |
| THIRLSTONE DAYLIGHT | Mare | CHESTNUT | 21999 | Stud Book | Deceased | |
| THIRLSTONE FIDGET | Mare | BAY | 22004 | Stud Book | Deceased | |
| THIRLSTONE FREDA | Mare | BROWN | 22008 | Stud Book | Deceased | |
| THIRLSTONE GANA SPOT | Mare | BROWN | 43228 | 10/10/1975 | Stud Book | Not Eligible |
| THIRLSTONE GAY SPOT | Mare | BAY | 43835 | 10/09/1976 | Stud Book | Not Eligible |
| THIRLSTONE HAIL SPOT | Mare | BAY | 43834 | 16/09/1975 | Stud Book | Not Eligible |
| THIRLSTONE JET SPOT | Mare | BAY | 56673 | 17/11/1977 | Stud Book | Not Eligible |
| THIRLSTONE JEWEL BOX | Mare | BROWN | 21991 | Stud Book | Deceased | |
| THIRLSTONE JUST GOLD | Mare | CHESTNUT | 22007 | Stud Book | Deceased | |
| THIRLSTONE LIGHT SPOT | Gelding | CHESTNUT | 59219 | 20/10/1977 | Stud Book | Not Eligible |
| THIRLSTONE MAGNET | Mare | CHESTNUT | 21998 | Stud Book | Deceased | |
| THIRLSTONE MELISSA | Mare | BLACK | 21996 | Stud Book | Deceased | |
| THIRLSTONE MIDNIGHT | Mare | BLACK | 21995 | Stud Book | Deceased | |
| THIRLSTONE MORNING STAR | Mare | BAY | 56674 | 13/01/1977 | Stud Book | Deceased |
| THIRLSTONE QUICK CAT | Mare | DUN | 21994 | Stud Book | Deceased | |
| THIRLSTONE SCHEVAL | Mare | BROWN | 3093 | 10/02/1966 | Stud Book | Deceased |
| THIRLSTONE SHARZAN | Mare | CHESTNUT | 65389 | 05/01/1982 | Stud Book | Not Eligible |
| THIRLSTONE SMOKEY SPOT | Mare | BROWN | 43229 | 30/08/1976 | Stud Book | Deceased |
| THIRLSTONE SOUTHERN BELLE | Mare | CHESTNUT | 59218 | 18/10/1979 | Stud Book | Deceased |
| THIRLSTONE SUSIE | Mare | CHESTNUT | 21997 | Stud Book | Deceased | |
| THIRLSTONE TRY HIGH | Mare | BAY | 62136 | 20/09/1977 | Stud Book | Not Eligible |
| THIRLSTONE VALDICE | Mare | GREY | 22001 | 25/02/1968 | Stud Book | Deceased |
| THIRLSTONE VALETA | Mare | BAY | 22003 | Stud Book | Deceased | |
| THIRSTLEDOON BARNABY | Gelding | BAY | 67626 | 01/08/1981 | Stud Book | Not Eligible |
| THIRSTY LEO | Gelding | CHESTNUT | 63984 | 27/09/1981 | Stud Book | Not Eligible |
| THIRSTY MERC | Gelding | BLACK | 270704 | 14/11/2022 | Stud Book | Not Eligible |
| THIS CATS TIPSY | Mare | CHESTNUT | C1-259949 | 24/10/2019 | First Cross | Not Eligible |
| THIS DOCS FLASH | Mare | BAY/PIED | C1-259306 | 12/09/2020 | First Cross | Not Eligible |
| THIS TRAMPS LETHAL | Mare | BAY | C1-268105 | 02/12/2017 | First Cross | Not Eligible |
| THISBE | Mare | CHESTNUT | 19308 | Stud Book | Deceased | |
| THISLDOO BRU - HSH | Gelding | BAY | 155996 | 11/11/2000 | Stud Book | Not Eligible |
| THISLDOO SHANNON | Mare | BROWN | BP-78280 | 02/09/1995 | Breeding Purposes Only - Stud Book | Deceased |
| THISSELDOO | Gelding | BROWN | 39752 | Stud Book | Not Eligible | |
| THISTLE | Mare | CHESTNUT | 679 | Stud Book | Deceased | |
| THISTLE CAIRN | Mare | BAY | 27746 | Stud Book | Deceased | |
| THISTLE CASINO | Mare | CHESTNUT | 27747 | 01/09/1973 | Stud Book | Not Eligible |
| THISTLE CINNAMON | Mare | DUN | 35062 | Stud Book | Deceased | |
| THISTLE DEW - HSH | Mare | CHESTNUT | 26629 | 01/09/1973 | Stud Book | Not Eligible |
| THISTLE GLEN | Mare | CHESTNUT | 47577 | 15/09/1976 | Stud Book | Not Eligible |
| THISTLE MICHELLE | Mare | BROWN | 27745 | Stud Book | Deceased | |
| THISTLE PARK BARBARY | Mare | CHESTNUT | 36271 | Stud Book | Not Eligible | |
| THISTLE STUD ABA SHAH | Stallion | BROWN | F24747 | 14/01/1979 | Foal Recorded | Not Eligible |
| THISTLE STUD ABBA | Mare | BROWN | 41437 | 06/03/1974 | Stud Book | Not Eligible |
| THISTLE STUD ALL DAY | Gelding | BROWN | F43038 | 01/01/1986 | Foal Recorded | Not Eligible |
| THISTLE STUD BRACELET - HSH | Mare | BAY | 155106 | 30/08/2000 | Stud Book | Not Eligible |
| THISTLE STUD CASCADE | Gelding | BROWN | F35028 | 05/11/1981 | Foal Recorded | Not Eligible |
| THISTLE STUD CIRCUS - HSH | Mare | BROWN | 135611 | 01/08/1995 | Stud Book | Deceased |
| THISTLE STUD COOL CHARM - HSH | Mare | BAY | 118826 | 10/12/1991 | Stud Book | Deceased |
| THISTLE STUD FAITH - HSH | Mare | BAY | 173028 | 03/08/2013 | Stud Book | Not Eligible |
| THISTLE STUD GLIMMER | Gelding | BROWN | 63953 | 29/08/1977 | Stud Book | Not Eligible |
| THISTLE STUD HIGH NOON - HSH | Gelding | BROWN | 147276 | 30/10/1999 | Stud Book | Not Eligible |
| THISTLE STUD ICON | Mare | CHESTNUT | 148420 | 04/08/1999 | Stud Book | Not Eligible |
| THISTLE STUD IDOWRA ROBYN | Mare | BAY | 76833 | 18/12/1982 | Stud Book | Deceased |
| THISTLE STUD JEDDA - HSH | Mare | BLACK | 63952 | 21/11/1976 | Stud Book | Deceased |
| THISTLE STUD MANNEQUIN - HSH | Mare | CHESTNUT | 132270 | 19/11/1996 | Stud Book | Deceased |
| THISTLE STUD MANRAY - HSH | Gelding | BAY | F19851 | 19/11/1978 | Foal Recorded | Not Eligible |
| THISTLE STUD MILLENNIUM | Mare | BAY | 149402 | 01/01/2001 | Stud Book | Eligible |
| THISTLE STUD MODEL - HSH | Mare | BROWN | 173027 | 20/11/2012 | Stud Book | Eligible |
| THISTLE STUD NEON | Mare | BROWN | 117145 | 04/09/1988 | Stud Book | Not Eligible |
| THISTLE STUD PILOT | Gelding | BROWN | 135913 | 09/09/1998 | Stud Book | Not Eligible |
| THISTLE STUD POP TOP | Gelding | BROWN | 135914 | 08/01/1993 | Stud Book | Not Eligible |
| THISTLE STUD ROBINA | Mare | BROWN | 147277 | 06/08/1999 | Stud Book | Not Eligible |
| THISTLE STUD SISTER | Mare | BROWN | 50343 | 18/12/1973 | Stud Book | Deceased |
| THISTLE STUD SMALL TALK - HSH | Gelding | BROWN | 115777 | 05/12/1990 | Stud Book | Deceased |
| THISTLE STUD SYMBOL | Mare | BAY | 63951 | 22/11/1977 | Stud Book | Not Eligible |
| THISTLE STUD TOPCY | Mare | BROWN | 74515 | 10/10/1985 | Stud Book | Deceased |
| THISTLE STUD TOPIC | Gelding | BAY | 74516 | 03/10/1983 | Stud Book | Not Eligible |
| THISTLE STUD TOSCA | Mare | BROWN | 41124 | 01/12/1969 | Stud Book | Deceased |
| THISTLE STUD WHISPER - HSH | Mare | BLACK | 173026 | 09/08/2012 | Stud Book | Not Eligible |